Flat-panel display



FIG. 1 is a front, top, right side perspective view of a flat-panel display, showing my new design;

FIG. 2 is a back, top, right side perspective view thereof;

FIG. 3 is a front side elevational view thereof;

FIG. 4 is a back side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a flat-panel display, as shown. 